O Si 
 1.0000000000000000
     7.5918191817767164   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    7.5918191817767164    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    7.5918191817767164
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.9489773977220892  0.9489773977220893  0.9489773977220892   T   T   T
  6.6428417840546254  2.8469321931662686  4.7448869886104479   T   T   T
  2.8469321931662681  4.7448869886104488  6.6428417840546254   T   T   T
  4.7448869886104479  6.6428417840546263  2.8469321931662681   T   T   T
  2.8469321931662681  6.6428417840546263  4.7448869886104479   T   T   T
  6.6428417840546254  4.7448869886104488  2.8469321931662681   T   T   T
  4.7448869886104479  2.8469321931662686  6.6428417840546254   T   T   T
  0.9489773977220892  4.7448869886104488  4.7448869886104479   T   T   T
  6.6428417840546254  6.6428417840546263  0.9489773977220892   T   T   T
  2.8469321931662681  0.9489773977220893  2.8469321931662681   T   T   T
  2.8469321931662681  2.8469321931662686  0.9489773977220892   T   T   T
  6.6428417840546254  0.9489773977220893  6.6428417840546254   T   T   T
  4.7448869886104479  0.9489773977220893  4.7448869886104479   T   T   T
  0.9489773977220892  6.6428417840546263  6.6428417840546254   T   T   T
  0.9489773977220892  2.8469321931662686  2.8469321931662681   T   T   T
  4.7448869886104479  4.7448869886104488  0.9489773977220892   T   T   T
 -0.0000000000000005  0.0000000000000000 -0.0000000000000005   T   T   T
 -0.0000000000000005  3.7959095908883573  3.7959095908883569   T   T   T
  3.7959095908883569  3.7959095908883573 -0.0000000000000004   T   T   T
  3.7959095908883569  0.0000000000000000  3.7959095908883569   T   T   T
  5.6938643863325362  1.8979547954441787  5.6938643863325362   T   T   T
  1.8979547954441784  1.8979547954441787  1.8979547954441784   T   T   T
  1.8979547954441784  5.6938643863325371  5.6938643863325362   T   T   T
  5.6938643863325362  5.6938643863325371  1.8979547954441784   T   T   T